Monochrome sensors are not a joke

Pentax K-3 Mark III
Will Pentax make a mono variant of the K-3 III to follow Leica, Phase One and Red? (Image credit: Rod Lawton/Digital Camera World)

But what is the point of a monochrome sensor, as rumored for the Pentax K-3 Mark III? Surely, you could just desaturate the colors in a regular image and get the same result? Not quite.

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Rod Lawton

Rod is an independent photography journalist and editor, and a long-standing Digital Camera World contributor, having previously worked as DCW's Group Reviews editor. Before that he has been technique editor on N-Photo, Head of Testing for the photography division and Camera Channel editor on TechRadar, as well as contributing to many other publications. He has been writing about photography technique, photo editing and digital cameras since they first appeared, and before that began his career writing about film photography. He has used and reviewed practically every interchangeable lens camera launched in the past 20 years, from entry-level DSLRs to medium format cameras, together with lenses, tripods, gimbals, light meters, camera bags and more. Rod has his own camera gear blog at but also writes about photo-editing applications and techniques at